Circuit Breaker, Voltage Rating: 600 Volts AC/DC, Amperage Rating: 400 Amp, Frequency Rating: 50 - 60 Hz, Frame: 300 - 400 Amp, Trip Type: Thermal-Magnetic, Trip Range: 2000 - 4000 Amp, Interrupt Rating: 35 Kamp at 480 Volts AC, Number of Poles: 3, Length: 5.510 Inch, Width: 470 Inch, Height: 870 Inch, Mechanical Life: 20000 Operations, Weight: 8.550 lbs, Interrupting Rating Class/Breaking Capacity: Standard